No notifications in Slack #alert channel - Incident 2016/07/12

Overview

Several critical Incidents (Check MK) were triggered today at around 01:00:00 UTC Tuesday, 12 July 2016 - No alerts were triggered in the Slack alerts channel https://gitlab.slack.com/alerts

See: https://gitlab.slack.com/archives/alerts/p1468309555000002

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On investigation it was discovered that notifications were disabled.

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Fix: Re-enabled notifications